Incremental changes to VME occur routinely, though most often they are designed to add more data movement capability, either on the VMEbus itself or over dedicated backplane connections. The new VITA 41 VXS standard defines a switch architecture that increases – by an order of magnitude – the available bandwidth to the backplane. VITA 41 also is fabric-agnostic, allowing several fabric “flavors” to be used to fit the I/O situation.